Clinker cooler



Nov. 26; 1929. I w RYDER 1,737,061

CLINKER COOLER Filed May 1, 1926 2 Sheets-Sheet 1 U INVENTOR ROBERT W RYDEQ A TTORNEY Nov.26, 1929. R. w. RYb'ER- 1,737,061

' CLINKER COOLER Filed May 1, 1926 2 Sheets-Sheet. 2

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INVENTOR. ROBERT W, 121 1123 A TTORNEYS.

Patented Nov. 26, 1929 UNITED Pied!"ll.

ROBERT W. RYDER, (3]? SAN FRAFJICISCG, CALIFQR'NIA, AESSIGNOR 'Et) EANTA CRUZ E031- LAND CEMENT COMPANY, 91* SAN FEAECISCQ, CALTLFORNIA, A GGEEOEATIQH OF CALIFORNIA GLINKER oooLnn Application filed May 1, 1928 Serial No. 195,900.

This invention relates to the manufacture of Portland cement and has to do with a method and means for cooling the hot clinker as taken from the kiln room.

The objects of the invention are to provide a method and means which will accomplish the efficient cooling of the clinker with minimum of attention and upkeep of equipment.

In the drawings hereto the preferred form of apparatus for carrying out by means is shown, though it is to be understood that variations in structure which come within the spirit of the invention are intended to be covered in the appended claims.

Figure 1 of the drawing is an elevation of one of the cooling towers and is somewhat diagrammatic on account of the relatively large dimensions of the structure depicted.

Figure 2 is an enlarged sectional view of the lower and upper portions of the structure showing the arrangement of cooling shelves and lower discharge to the stacking belt conveyor, art of the lower right-hand portion being sliown in full.

Figure 8 is a perspective detail of a portion of a pair of the shelves showing the supporting lugs underneath and the interlocking upper edges.

Fig. l is a cross section of Fig. 2 as seen from the line ll thereof.

In further detail the drawings show a rectangular tower structure of suitable posts 1 and spaced transverse beams 2 and 3.

At the top of the tower is a bin a into which the hot clinker is delivered from an elevator 5 and from which bin the clinker 6 freely discharges over a series of slanted shelves 7 supported on the transverse beams 3.

The shelves are arranged in tiers so that as the hot clinker flows by gravity from the open bottom of the bin it will be discharged from the converging sides or trough of one set of shelves to the apex of the shelves beneath, the lower edges of adjacent shelves in each tier being spaced to permit the material freely flowing therethrough.

The helves extend clear across the tower and are made of plates preferably cast iron of about a half inch thick in practice, and are provided with lugs 8 at the lower rear sides as shown in Figure 3 engaging 'l' iron rails 9 extending across the beams 3, while the upper edges are alternately notched as indicated at 10 in Figure 3 so as to interlock each pair of plates into gable roof like formation.

The construction described provides for quickly assembling the shelves on the tower structure or for easy replacement as it avoids the use of any belts or other fastening means.

The discharge from the lowermost shelves is received on pair of shaker feed plates 11 si g for discharge of the cooled ma- 2 which may extend from the kiln room floor indicated.

The conveyor 12 is presumed to pass bei number of cooling towers to transpo t the material'to the storage stacks.

shaker feed plates are pivotally suspended on links 13 and vibrated by any suitable means indicated by the pitman 14c.

Attention is here call d to the fact that the s taker feed controls the discharge and therere the gravitational descent of the material over the slanted shelves as itcan flow no faster than it is allowed to emerge, the amount of liscliarge being regulated by adjustment of the angle of the plates by means of the nut 15. 'lherefore while l show a shaker feed as controlling the "flow, it is understood that any other of the well known types of controlling d'schargc may be substituted.

The angle of the slantct shelves is made about 40 and the normal of repose of the material bein about o0 iorms the material layers above each shelf as indicated in Figure 1, and therefore requires retaining edges or walls 16 at the ends of the shelves to prevent material running over, and also side walls 17 at some of outwardly slanted shelves as indicated in Figure 2, to guide the stacker conveyor 12 mounted on the around the inside of the bin, are secured to the walls of the bin at their upper edges and are directed one within the other as shown.

This arrangement provides for a current of air being drawn upward by the stack directly from the base of the pile of clinker within the receiving bin, regardless of the amount of clinker in the bin. This will be understood by the dotted line 21 representing the top surface of the pile.

In operation the towers are arranged with the channels formed by the slanted shelves presented to the prevailing winds of the locality in which the plant is located, so that most of the wind will pass through the tower longitudinally of the shelves and over the slowly descending layers of clinker. The tower is of such a height, in practice about 30 feet, and the feed discharge regulated so that the descent of a given piece of material will require about eight hours to pass through, and the angular disposition of the shelves insures a turning over of the descending material as it flows from the troughs of one tier of shelves to the apices of the next tier.

I claim:

1. Apparatus for cooling hot clinker comprising a tower with a series of shelves in the tower structure one above the other arranged for the material to fall from shelf to shelf in descent through the tower, said shelves being formed of plates arranged in pairs in gable roof formation with the lower spread edges of each pair resting on the tower structure and upper edges of the plates in each pair resting freely one against the other.

2. Apparatus for cooling hot clinker comprising a tower with a series of shelves in the tower structure one above the other arranged for the material to fall from shelf to shelf in descent through the tower, said shelves being formed of plates arranged in pairs in gable roof formation with the lower spread edges of each pair resting on the tower structure and upper edges of the plates in each pair resting freely in interlocked engagement one against the other.

3. Apparatus for cooling hot clinker comprising a tower with a series of shelves in the tower one above the other arranged for the material to fall from shelf to shelf in descent through the tower, said tower including transverse shelf supporting members and said shelves being formed of plates arranged in pairs in gable roof formation with the lower edges of the shelves resting on said members by means of lugs on the under side of the shelves engaging the members.

4. Apparatus for cooling hot clinker comprising a tower with a series of gabled shelves in the tower one above the other, arranged for the material to fall from shelf to shelf in descent through the tower, said ROBERT w. RYDER. 

